feat(frontend): create QuantGridAdapter unified PrimeVue DataTable wrapper with built-in search, sorting, multi-selection, and CSV export

src/frontend/src/components/QuantGridAdapter.vue

@@ -0,0 +1,157 @@
+<!-- Enterprise Unified Grid Adapter Wrapper: QuantGridAdapter -->
+<template>
+  <div class="quant-grid-adapter flex flex-col w-full h-full border border-slate-300 rounded-lg shadow-2xs bg-white overflow-hidden">
+    <!-- 그리드 상단 툴바 (엑셀 내보내기, 전체 검색, 컬럼 필터 등) -->
+    <div v-if="showToolbar !== false" class="flex items-center justify-between px-3 py-2 bg-slate-100 border-b border-slate-200 text-xs">
+      <div class="flex items-center gap-2">
+        <span class="font-bold text-slate-700 flex items-center gap-1">
+          <span>📊</span> {{ title || '데이터 그리드' }}
+        </span>
+        <span v-if="items" class="text-[11px] text-slate-500 font-mono">
+          ({{ items.length.toLocaleString() }}건)
+        </span>
+      </div>
+
+      <div class="flex items-center gap-2">
+        <InputText
+          v-if="showSearch !== false"
+          v-model="globalSearchQuery"
+          placeholder="전체 검색..."
+          class="h-7 w-44 text-[11px] px-2 border-slate-300"
+        />
+        <Button
+          v-if="showExport !== false"
+          label="엑셀 내보내기"
+          icon="pi pi-file-excel"
+          class="p-button-sm p-button-success h-7 text-[11px] px-2 font-bold"
+          @click="exportCSV"
+        />
+      </div>
+    </div>
+
+    <!-- PrimeVue DataTable 래핑 레이어 -->
+    <DataTable
+      ref="dt"
+      v-bind="$attrs"
+      :value="filteredItems"
+      :loading="loading"
+      :paginator="paginator !== false"
+      :rows="rows || 15"
+      :rowsPerPageOptions="[10, 15, 30, 50, 100]"
+      :selection="selectedRows"
+      :selectionMode="selectionMode"
+      dataKey="id"
+      responsiveLayout="scroll"
+      resizableColumns
+      columnResizeMode="fit"
+      reorderableColumns
+      class="p-datatable-sm w-full text-xs flex-1"
+      tableStyle="min-width: 50rem"
+      @update:selection="onSelectionChange"
+    >
+      <template #empty>
+        <div class="text-center py-8 text-slate-400 font-medium">
+          조회된 데이터가 존재하지 않습니다.
+        </div>
+      </template>
+
+      <!-- 외부 정의 슬롯 100% 바이패스 전파 -->
+      <template v-for="(_, slotName) in $slots" :key="slotName" #[slotName]="slotProps">
+        <slot :name="slotName" v-bind="slotProps || {}"></slot>
+      </template>
+
+      <!-- Checkbox 선택 컬럼 -->
+      <Column v-if="selectionMode === 'multiple'" selectionMode="multiple" headerStyle="width: 3rem" />
+
+      <!-- 동적 컬럼 바인딩 -->
+      <Column
+        v-for="col in columns"
+        :key="col.key"
+        :field="col.key"
+        :header="col.label"
+        :style="{ width: col.width || 'auto', textAlign: col.align || 'left' }"
+        sortable
+      >
+        <template #body="slotProps">
+          <slot :name="col.key" :item="slotProps.data" :value="slotProps.data[col.key]">
+            <span v-if="col.type === 'number'" class="font-mono font-bold text-slate-900">
+              {{ formatNumber(slotProps.data[col.key]) }}
+            </span>
+            <span v-else-if="col.type === 'currency'" class="font-mono font-bold text-blue-700">
+              ₩{{ formatNumber(slotProps.data[col.key]) }}
+            </span>
+            <span v-else class="font-medium text-slate-800">
+              {{ slotProps.data[col.key] ?? '-' }}
+            </span>
+          </slot>
+        </template>
+      </Column>
+    </DataTable>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed } from 'vue';
+import DataTable from 'primevue/datatable';
+import Column from 'primevue/column';
+import InputText from 'primevue/inputtext';
+import Button from 'primevue/button';
+
+defineOptions({
+  inheritAttrs: false
+});
+
+export interface AdapterGridColumn {
+  key: string;
+  label: string;
+  width?: string;
+  align?: 'left' | 'center' | 'right';
+  type?: 'text' | 'number' | 'currency' | 'date' | 'status';
+}
+
+const props = defineProps<{
+  title?: string;
+  columns: AdapterGridColumn[];
+  items: any[];
+  loading?: boolean;
+  paginator?: boolean;
+  rows?: number;
+  selectionMode?: 'single' | 'multiple';
+  showToolbar?: boolean;
+  showSearch?: boolean;
+  showExport?: boolean;
+}>();
+
+const emit = defineEmits(['selection-change', 'update:selection']);
+
+const dt = ref();
+const globalSearchQuery = ref('');
+const selectedRows = ref<any>(null);
+
+const filteredItems = computed(() => {
+  if (!props.items) return [];
+  if (!globalSearchQuery.value) return props.items;
+  const q = globalSearchQuery.value.toLowerCase();
+  return props.items.filter(item => {
+    return Object.values(item).some(val => String(val ?? '').toLowerCase().includes(q));
+  });
+});
+
+const formatNumber = (val: any) => {
+  if (val === undefined || val === null || val === '') return '-';
+  const num = Number(val);
+  return isNaN(num) ? String(val) : num.toLocaleString();
+};
+
+const onSelectionChange = (val: any) => {
+  selectedRows.value = val;
+  emit('update:selection', val);
+  emit('selection-change', val);
+};
+
+const exportCSV = () => {
+  if (dt.value) {
+    dt.value.exportCSV();
+  }
+};
+</script>

src/frontend/src/views/ComponentShowcaseView.vue

@@ -83,6 +83,21 @@
         </div>
       </div>
 
+      <div class="p-3 bg-slate-50 rounded border flex flex-col gap-2">
+        <span class="text-xs font-bold text-slate-800">17. QuantGridAdapter (통합 PrimeVue 그리드 어댑터: 검색, 정렬, 엑셀 내보내기 내장)</span>
+        <QuantGridAdapter
+          title="OMS 주문 실시간 목록"
+          :columns="[
+            { key: 'orderNo', label: '주문번호', width: '140px' },
+            { key: 'customerName', label: '거래처명' },
+            { key: 'amount', label: '금액', width: '130px', type: 'currency', align: 'right' },
+            { key: 'orderDate', label: '주문일자', width: '110px', align: 'center' }
+          ]"
+          :items="showcaseRowData"
+          selectionMode="multiple"
+        />
+      </div>
+
       <div class="p-3 bg-slate-50 rounded border">
         <span class="text-xs font-bold text-slate-800 mb-1 block">17. QuantSearchHeaderBar</span>
         <QuantSearchHeaderBar v-model:searchQuery="showcaseSearch" v-model:selectedStatus="showcaseStatus" :statusOptions="['전체', '승인완료', '검토중']" />
@@ -202,6 +217,7 @@ import QuantSearchHeaderBar from '../components/QuantSearchHeaderBar.vue';
 import QuantStatusChip from '../components/QuantStatusChip.vue';
 import QuantTabPanel from '../components/QuantTabPanel.vue';
 import QuantSplitter from '../components/QuantSplitter.vue';
+import QuantGridAdapter from '../components/QuantGridAdapter.vue';
 
 import QuantFormModal from '../components/QuantFormModal.vue';
 import QuantLookupModal from '../components/QuantLookupModal.vue';